Dr Oliver Mathematics is an excellent site for A Level Mathematics and Further Mathematics.

On Doctor Oliver Mathematics you will find an extensive library of worked examples, access these via examination papers or choose questions by topic. It is so useful that the question and solution are presented together. At A level you will find both Mathematics and Further Mathematics.

Note also the sections on Proof for A Level Maths and also Further Maths, and the definitions for Year 12.

I have added this brilliant site to the following collections:

• Worked Examples – A Level
• Sources of past paper questions and mark schemes – A Level
• Exam questions by topic – Further Maths A Level

On the subject of Simpson’s rule, we could use this online utility from zweigmedia.

See Online Utilities for more, I’m impressed that this is all available – I wrote that post back in 2012!